Made flow restrictors from 1/4" diameter brass rod to put in the AN fittings at the oil pressure, and fuel regulator vent ports. The flow restrictors were threaded to 1/4"x28 and screwed into the 1/4"x28 tapped inlet side of the fittings. The restrictor holes were drilled with a #55 (0.046") drill bit. The purpose of the restrictors is to limit the flow from the oil pressure sensor line and the fuel vent return line in case the line should break.
